chore(deps-dev): bump css-loader from 3.5.3 to 5.1.3

Bumps [css-loader](https://github.com/webpack-contrib/css-loader) from 3.5.3 to 5.1.3.
- [Release notes](https://github.com/webpack-contrib/css-loader/releases)
- [Changelog](https://github.com/webpack-contrib/css-loader/blob/master/CHANGELOG.md)
- [Commits](webpack-contrib/css-loader@v3.5.3...v5.1.3)

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -95,7 +95,7 @@
     "babel-plugin-transform-inline-environment-variables": "^0.4.3",
     "babel-polyfill": "^6.26.0",
     "codecov": "^3.7.1",
-    "css-loader": "^3.5.3",
+    "css-loader": "^5.1.3",
     "enzyme": "^3.11.0",
     "enzyme-adapter-react-16": "^1.15.2",
     "enzyme-to-json": "^3.5.0",